City report · Shandong, China
Tianfu Air quality today
Air quality in Tianfu currently reads AQI 88 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 88
Moderate
- PM2.5, fine particles (µg/m³)
- 29.2
- tree cover
- 17.9%
- trees in this area
- 56.2K
- more trees needed
- 38.0K
Measured across a 2 km radius around Huancui District, Weihai, Shandong, China (12.57 km²), from a satellite image of Sep 14, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Tianfu · AQI 88 (Moderate)
Tianfu's tree count comes to 56,178 trees across 12.56 km² of land, 12 points below the 30% tree-cover level considered healthy for this area, so roughly 37,975 more trees would close the gap.
Air quality detail
Air quality in Tianfu today: AQI 88, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 21:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · Wendeng Development Zone Substation, Wendeng City (文登市文登开发区子站), 5.3 km away
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
29.2
PM10
49.7
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, Environmental Protection Department of Shandong Province (山东省环境保护厅)
- Outdoor exercise
- Fine for most people; unusually sensitive people should take long or hard exercise easier
- Windows
- Fine to open; close them if you are sensitive to pollution
- Mask
- Not needed for most people
- Air purifier
- Worth running if you are sensitive
Over the last 7 days, the CAMS air-quality model put Tianfu's daily AQI at 71 on average, from 42 on Nov 9 to an hourly peak of 121 on Nov 5.
Where Tianfu stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Tianfu: Critically low
17.9% tree cover against a 30% healthy-neighborhood target, across 12.56 km² of land.
Trees in this area
56,178
Target trees
94,153
More trees needed
37,975
CO₂ if planted / yr
835.5 t
Deforestation · 2001–2025
How much forest has Tianfu lost?
Since 2001, the area within 10 km of Tianfu has lost about 23 hectares of forest (about 32 football pitches): 14% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 2 hectares (6.6%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from July 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 23 haabout 32 football pitches
- Share of its forest
- 14%of what there was in 2000
- Cleared for good
- 2 hadeforestation: turned into farms, mines or towns
The worst year was 2020, when about 16 hectares of forest were lost.
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | under 1 ha | under 1 ha | under 1 ha |
| 2002 | under 1 ha | 2 ha | 2 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | under 1 ha | under 1 ha | under 1 ha |
| 2005 | under 1 ha | under 1 ha | under 1 ha |
| 2006 | under 1 ha | under 1 ha | under 1 ha |
| 2007 | under 1 ha | under 1 ha | under 1 ha |
| 2008 | under 1 ha | under 1 ha | under 1 ha |
| 2009 | under 1 ha | under 1 ha | under 1 ha |
| 2010 | under 1 ha | under 1 ha | under 1 ha |
| 2011 | under 1 ha | under 1 ha | under 1 ha |
| 2012 | under 1 ha | under 1 ha | under 1 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | under 1 ha | under 1 ha | under 1 ha |
| 2017 | under 1 ha | under 1 ha | under 1 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | under 1 ha | 16 ha | 16 ha |
| 2021 | under 1 ha | under 1 ha | under 1 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | under 1 ha | under 1 ha | under 1 ha |
| 2024 | under 1 ha | under 1 ha | under 1 ha |
| 2025 | under 1 ha | under 1 ha | under 1 ha |
What is causing deforestation around Tianfu?
- Loggingcan grow back87% · 20 ha
- Wildfirescan grow back5.3% · 1 ha
- Mining and energycleared for good4% · under 1 ha
Also: towns and roads, farms, pasture and plantations, unknown causes.
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
Forest gained and lost, 2000–2020
- Forest in 2000
- 938 ha
- Forest in 2020
- 1,230 ha
- Overall change
- +290 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Tianfu grew from about 938 hectares to 1,230 hectares, a net gain of about 290 hectares (+31%). New forest grew on about 313 hectares, while 23 hectares were lost.
These 2000 and 2020 maps, from the University of Maryland, count any land with trees taller than 5 m as forest, including plantations and orchards. Forest that was cut or burned and had grown back by 2020 counts in both years, so the loss here is smaller than the yearly figures.
These figures cover everything within 10 km of the city center, a wider area than the report above, because forest is usually lost at a city's edges.
Source: Hansen/UMD/Google/USGS/NASA, Global Forest Change (GFC-2025-v1.13); causes: WRI/Google DeepMind drivers of forest loss; both CC BY 4.0, summed by Airleaf for each area. Forest gained and lost 2000–2020: Potapov et al. 2022, UMD GLAD Global Land Cover and Land Use Change, CC BY 4.0. Images: contains modified Copernicus Sentinel data. How it's measured
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Frequently asked
Questions about Tianfu
What is the air quality (AQI) in Tianfu right now?
The latest reading for Tianfu shows an AQI of 88 (Moderate), measured Nov 11, 21:00 local time by the Wendeng Development Zone Substation, Wendeng City (文登市文登开发区子站) ground monitoring station, 5.3 km away, via OpenAQ. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Tianfu today?
At AQI 88 (Moderate): fine for most people; unusually sensitive people should take long or hard exercise easier. Windows: fine to open; close them if you are sensitive to pollution. Masks: not needed for most people. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Tianfu been like this week?
Over the last 7 days, the CAMS air-quality model put Tianfu's daily AQI at 71 on average, from 42 on Nov 9 to an hourly peak of 121 on Nov 5. On 1 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Tianfu lost since 2001?
Since 2001, the area within 10 km of Tianfu has lost about 23 hectares of forest (about 32 football pitches): 14% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 2 hectares (6.6%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Tianfu grew from about 938 hectares to 1,230 hectares, a net gain of about 290 hectares (+31%). New forest grew on about 313 hectares, while 23 hectares were lost.
What is the tree count in Tianfu?
Tianfu has an estimated 56,178 trees across the 12.56 km² of land measured — 17.9% tree cover, 12 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Tianfu need?
Tianfu needs roughly 37,975 more trees to close a 12-point shortfall against its 30% tree-cover target — about 835.5 t of extra CO₂ absorbed per year once grown.
How are Tianfu's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Huancui District, via OpenAQ; the 7-day trend is the Open-Meteo / CAMS model's estimate. Tree cover is measured from Sentinel-2 L2A (ESA Copernicus) via Earth Search satellite imagery at 10 m detail across a 2 km radius around Huancui District; the tree count is an estimate derived from that cover.
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